Home / 372,101.69-513,438.09-219,170.34

Finding the Fourth Proportional to 372,101.69, 513,438.09 and 219,170.34

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Solution

The fourth proportional to 372,101.69, 513,438.09 and 219,170.34 is: 302,418.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,101.69 : 513,438.09 = 219,170.34 : x
  2. Step 2: Convert to fraction form
    372,101.69/513,438.09 = 219,170.34/x
  3. Step 3: Cross multiply
    372,101.69x = 513,438.09 × 219,170.34
  4. Step 4: Simplify right side
    372,101.69x = 112,530,400,754.25
  5. Step 5: Solve for x
    x = 112,530,400,754.25/372,101.69
  6. Step 6: Final answer
    x = 302,418.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.